What is the Greatest Common Factor of 99870 and 99890?

Greatest common factor (GCF) of 99870 and 99890 is 10.

GCF(99870,99890) = 10

We will now calculate the prime factors of 99870 and 99890, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 99870 and 99890.

How to find the GCF of 99870 and 99890?

We will first find the prime factorization of 99870 and 99890. After we will calculate the factors of 99870 and 99890 and find the biggest common factor number .

Step-1: Prime Factorization of 99870

Prime factors of 99870 are 2, 3, 5, 3329. Prime factorization of 99870 in exponential form is:

99870 = 2¹ × 3¹ × 5¹ × 3329¹

Step-2: Prime Factorization of 99890

Prime factors of 99890 are 2, 5, 7, 1427. Prime factorization of 99890 in exponential form is:

99890 = 2¹ × 5¹ × 7¹ × 1427¹

Step-3: Factors of 99870

List of positive integer factors of 99870 that divides 99870 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 3329, 6658, 9987, 16645, 19974, 33290, 49935

Step-4: Factors of 99890

List of positive integer factors of 99890 that divides 99870 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70, 1427, 2854, 7135, 9989, 14270, 19978, 49945

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 99870 and 99890. The biggest common factor number is the GCF number.
So the greatest common factor 99870 and 99890 is 10.

Also check out the Least Common Multiple of 99870 and 99890